To spritz is to spray quickly and briefly, or in bursts. Rather than dousing yourself in cologne before your big date, you should probably just spritz a little on your neck.
Spritz has roots in the German verb spritzen, "to squirt." You might spritz your bathroom with air freshener, spritz a pan with cooking spray, or spritz your fancy hairdo with hairspray. There are also several drinks influenced by the word spritz, including a spritzer, a bubbly carbonated drink made with wine or fruit juice.